Connecting plug



A TTORNE Y /V//////////VVMV/.

Sept. 4, 1928.

L. G. 'PAcr-:NT

CONNECTING PLUG Filed Feb. 14, 192s toproduce a connecting plug of the telel- Patented Sept. v,4, 1928,

, UNIT-ED vSIFAT111.Sn

.PATENT o-FFLcgE-.'

LoUIs GERARD rAcENT, or W'INF'IELD, NEW YORK, 'AssIeNon 'ro rAcEN'r ELEcrnIc l' coMrANxLiNc., or N Ew Yoan, N. Y., A coRPoBjATIoNor NEW YORK..

" coNNEcTxNG .21.179,

,Appiication fileaaetniary 14, 192s. semaine.; 18,881

This invention is concerned, ingeneral,V

with devices for making electrical connections, -and, more particularly,devices of \the spring connector type.v

In its broader aspect, the object of the invention is the production of a vspring type connector of simple and rugged construereliable.

In.' its more specific aspect, the 'object is phone type ,including in its structure a spring connector'having the desirable characteristics previouslly set forth.

In accordance with the foregoing objects,

the connector constituting the-preferred form v of the invention comprises a rigid conductf ing'member having a pair of oppositely disposed apertures, that is substantially aligned apertures, through which, conjointly,a wire or cord tip or other similar conductor may y' be inserted, and a resilient member such as a Hat spring having one end fixedand its free end suitable disposed and operable to grip orotherwiserestrain the conductor against withdrawal froml the aforementioned conducting member, together 4with suitable` means such as a push button for flexing the resilientv member,`whereby theI free end of :the latter may be readily movedrout of the from to permit insertion and withdrawal of path of the conductor ordisengaged 'therethe latter.

,At the present time the invention-nds Aits most important embodiment lin. telephone i plugs for use particularly in conjunction ,with radio apparatus. 4 Radio telephone headsets are ordinarily provided with cords having so-'calle'd pin type cord tips'which,

of course, arenot adapted for ma ing connections with spring jacks",A but are particularly `well adapted for making connections with certain typesof binding posts and spring clips, such as thev wellknown Fahnestock clips. Because of-the fact that it is frequently desirable to connect a telephone headset with binding posts and the' like,

especially for experimental and testing purposes, it is undesirable, in' m a plug. The structure of the-present invention is designed to meet this 'situation in that it provides a plug to which a cord provided with the usual pin type cord tips vy"case s, to* have the headset permanentlyconnected to may be quickly and easil'" connected and disl connected and in whic tions 1s mounted inside the 4handle of `the plug. *l

tion of the invention to ,ol1ow reference will v' be madeto the accompanying dravs'i'ngyin'-v "5.

which L 1 l Fig. 1 .is aelevational view'of a tele phone plug with one-half ofthe handle removed for the purpose of more yclearly.

disclosing e interior mechanism;

line. 2--2 of` Fig.v1;

Fig; 3is a cross sectional View Fig.4 isal cross sectional view ltaken along- .V Y

the line 4 4 'of l; Fig. 5 is av fragmentary vie-w, partly substantially 'the ent1re meehanism for effecting sch connec ,In connection with, the detailed descripy j cross section, of the plug showni'IrFigs. tof

4 incluslve:

Referring 1era to' Fis. fai-naaste, the plug shown comprises the'usualfftip and..

sleeve conductors 1 and 2 'respectively and a split `handle 3 'of insulating material. g .A

screw 4 may bel provided' for. holding the two parts of the handle 3 vt "gethei', The tip andsleevev members 1 an 2 are insulatedxfrom one 'another in the usual manner, and at theiruends are connected to. the lmetallic conducting members; 5 and '1 6 respectively.l

These latterfmembers are suitably formed,

as shown, to fit within thehandle 3, a1d :are-f,V

bent at .their lower ends into-the form, of a the two limbs of eachof these-U-sha'ped pon -tions oppositely disposedaperturesll ando". l

are provided, in the latter of which the hollow push button I i's slidably' mounted. A resilient member, in the forin of .a` Hat two limbs of the vU-shalped portion. The fr ev end of the sp'ring 8 is provided with an aperl ture 8 ofsuch sizel that whenits axis is in approximate alignment with the apertures i.

b'and 5, a wire or'a cord' tip such as lOvof a size adapted toV fit loosely in the aperture. 5* may be inserted therethrough. The .ten-- sion of spring 8, however, tends to'press its free end: downwardl as viewed in the 'l' ldrawing, into a position wherein the aper- Lthat the cord tip '10 ture 8 is so situated los 9ov U-shaped portion, as illustrated` at A5". .In--v cannot be inserted therethrough. v'vill-len,

however, the free end of spring Sis forced upwardly'bymeans of `the pushl button '7, this aperture 8 is moved into such a position as will permit the insertion of thecord tip 10. With the cord tip 10 thus inserted, upon the push button being released, the free end of spring 8 tends to move downwardly, and,) as -a result,"is twisted .into avplane wherein the cord tip 10 is gripped in the aperture 8 and securely held against withdrawah It will be perfectly clearfrom an examination rst pressing of the drawing that any force applied to the cord tending to'wit-hdraw it from the plug 'operates to tighten the grip of the spring '8 on the cord tip, so thatit is practically im possible to withdraw the cord .tip without the button 7.l 'l'.n. Fig. `5 the ring 8 is shownin full and dotted lines in its two extreme positions respectively. :The flange 7 integralwith the button 7 prevents withdrawal-ofthe latter.' It is thought that the details of the structure will be perfe'ctly clear from the A description already given in conjunction with the lvery complete illustration of Figs. 1 to 6 inclusive.

tessera It will be understood that although the invention finds its greatest utility attheY present time in telephone plugs as illus-v trated, it is not to be regarded as limited to such structures, inasmuch as it is equally ladapted for use as a spring connector out- L being adapted to receive a conductor, said the other of said apertures I.

push-button being apertured to permit the insertion therethrough of the said conductor,

a resilient member fixed at one end and having meansat its free end portion for engag- 'ing and restraining the said' conductor against withdrawal, said push button being 'operable to flex said resilient member for dsengaging the latter from the said conductor to permit its withdrawal In estimony whereof I aiix my signature.

LoUIs GERARD P AcEN'r. 

